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Alex777 [14]
3 years ago
9

Distributive 7x^2(-x*2-5x)

Mathematics
1 answer:
lys-0071 [83]3 years ago
4 0

Answer:

-49x^3

Step-by-step explanation:

7x^2(-2x-5x)\\7x^2(-7x)\\7*-7(x^2x)\\7*-7x^3\\= -49x^3

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Please answer ASAP and if you do you will get Brainliest. Catherine buys a gallon of ice cream from the store. After taking it h
rodikova [14]

Answer:

Catherine's sister ate 2/15 gallons of the ice cream.

\displaystyle \frac{2}{15}.

Step-by-step explanation:

Let x be the amount of ice cream that Catherine's sister ate, in gallons.

  • Original amount: 1 gallon.
  • What Catherine ate: \displaystyle \frac{1}{5} gallons.
  • What Catherine's sister ate is assumed to be x gallons.
  • What's left: \displaystyle \frac{2}{3} gallons.

Consider the relationship:

\text{Original amount - What Catherine ate - What Catherine's Sister ate}\\ =\text{ What's left.}.

That is:

\displaystyle 1- \frac{1}{5} - x = \frac{2}{3}.

Add x to both sides of this equation:

\displaystyle 1 - \frac{1}{5} = \frac{2}{3} +x

Substract \displaystyle \frac{2}{3} from both sides:

\displaystyle 1 - \frac{1}{5} - \frac{2}{3} = x.

Convert the denominator of all three numbers on the left-hand side to 3 \times 5 = 15

\displaystyle \frac{15}{15} - \frac{3}{15} - \frac{10}{15} = x.

\displaystyle x = \frac{2}{15}.

In other words, Catherine's sister ate \displaystyle \frac{2}{15} gallons of the ice cream.

3 0
3 years ago
Read 2 more answers
If the moon is a waning gibbous at 9pm, what will be the phase of the moon at midnight?
yanalaym [24]
<span>If the moon is a waning gibbous at 9 pm, the phase of the moon at midnight will be :

</span><span>The correct answer is: waning gibbous

</span>
6 0
3 years ago
Hi yall plz help me w/ this if ur good at algebra...
Sergeeva-Olga [200]

Answer:

(3,-35)

Step-by-step explanation:

math  way

3 0
3 years ago
20. Find the quotient.
ozzi

Answer:

The correct answer is J. 10

Step-by-step explanation:

The answer to the equation 4/5 divided by 2/25 is equal to 10.

5 0
4 years ago
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Please help! I would also like an explanation on how you find the answer if possible.
pentagon [3]

check the picture below.

3 0
3 years ago
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